Exercises

Hazardous operations

North Atlantic Ocean · NAVAREA IV 181/12

What this record establishes

Archived notice · 2012-04-15 00:01Z

This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.

Source and dates: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · EASTERN RANGE OP 0212 091156Z APR 12 (SECNET); - EASTERN RANGE OP 0212 PT2 140005Z APR 12.. Issued 2012-04-14 00:39Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
Location covered: North Atlantic Ocean. The map shows an area described by the warning; the listed coordinate is its representative center. Check the original wording for limits and qualifications.

Current notices and reporting history in the North Atlantic Ocean →

issued: 2012-04-14 00:39Z
status: Archived notice
authority: EASTERN RANGE OP 0212 091156Z APR 12 (SECNET); - EASTERN RANGE OP 0212 PT2 140005Z APR 12.
NAVAREA: NAVAREA IV
issued by: EASTERN RANGE OP
sea: North Atlantic Ocean
position: 14.883, -40.666
source: NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z

Original warning text

WESTERN NORTH ATLANTIC.
HAZARDOUS OPERATIONS.
1. HAZARDOUS OPERATIONS IN PROGRESS UNTIL 14 APR
   IN AREAS BOUND BY:
   A. 28-53N 075-43W, 28-48N 075-24W,
      28-37N 075-24W, 28-37N 075-40W,
      28-44N 076-17W, 28-57N 076-17W,
      28-56N 076-04W.
   B. 28-06N 072-40W, 28-00N 072-01W,
      27-48N 071-17W, 27-40N 071-20W,
      27-49N 071-50W, 27-42N 071-52W,
      27-52N 072-44W.
   C. 26-34N 066-40W, 25-44N 063-31W,
      25-00N 063-44W, 25-32N 065-50W,
      26-04N 065-40W, 26-24N 066-44W.
   D. 15-09N 042-41W, 15-54N 042-16W,
      16-13N 041-27W, 14-37N 038-41W,
      14-07N 039-01W, 13-39N 039-54W.
2. CANCEL THIS MSG 15 APR.

Reading this warning

Hazardous operations: NGA's heading for activities that make an area dangerous — most often rocket launches, space debris and weapons firings, and some open-ended danger areas.
Area bound by: Introduces a list of positions that are the corners of an area — the polygon the warning applies to.
Position (degrees and minutes): How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
CANCEL THIS MSG: The warning's own expiry: a line telling the reader when the message cancels itself.

All warning terms →

Collected reports in this area · military exercises

14 within 180 nm since 1999 · 0 in the last 12 months · 0 listed in force now

Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.

Month of issue in the collected archive

All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.

Nearby notices listed in force · within 120 nm

No other collected notice is currently listed in force within this radius. This does not establish safe conditions.

Worldwide in the collected sources

9 military exercises listed in force · see all

Record snapshot 2026-10-04 00:07Z; source collection times vary.

Exercises

Gunnery, firing and naval exercise areas. All current military exercises →

Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.